The St. Louis Cardinals (40-41) visit the Seattle Mariners (37-50) at T-Mobile Park Wednesday in an interleague matchup.
The Mariners are fifth in the American League West and are 18-24 in division play, 16.5 games behind the division-leading Astros.
Mike Leake is expected to take the mound for the Mariners. Leake, a right-hander, is 7-7 this season with a 4.63 ERA. His counterpart is right-hander Adam Wainwright, who is 5-7 with a 4.36 ERA on the year.
